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All Journal Jurnal Biologi Universitas Andalas Biosaintifika: Journal of Biology & Biology Education Bio-Lectura Floribunda Berita Biologi Biodiversitas Journal of Biological Diversity
Ahmad Taufiq
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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Above Ground Biomass Estimation of Syzygium aromaticum using structure from motion (SfM) derived from Unmanned Aerial Vehicle in Paninggahan Agroforest Area, West Sumatra Try Surya Harapan; Ahsanul Husna; Thoriq Alfath Febriamansyah; Mahdi Mutashim; Andri Saputra; Ahmad Taufiq; Erizal Mukhtar
Jurnal Biologi Universitas Andalas Vol 9, No 1 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.9.1.39-46.2021

Abstract

Above ground biomass (AGB) is all living organic matters above the soil including stem, seed and leaves. This study aimed to estimate the individual clove (Syzygium aromaticum) and it’s above ground biomass using Unmanned Aerial Vehicle in the Agroforestry area in Paninggahan, West Sumatra. This study used a photogrammetry method to calculate trees and estimated the AGB. We detected 257 numbers of trees based on aerial image analysis and observed 270 after we validated on ground check in the field. The result was slightly different between estimated AGB from UAV and observed AGB from our ground validation. The estimated AGB was 5.9 ton/ Ha where the surveyed AGB was 5.6 ton/Ha. The difference between estimated AGB and observed AGB was 0.3 ton/Ha.
ANALISIS MORFOMETRI DAN BIOLOGI REPRODUKSI ANAPHALIS JAVANICA DAN A.LONGIFOLIA (ASTERACEAE) DI SUMATERA BARAT Ahmad Taufiq; Syamsuardi Syamsuardi; Ardinis Arbain; Tesri Maideliza; Mansyurdin Mansyurdin
Floribunda Vol. 4 No. 7 (2013)
Publisher : PTTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.75 KB) | DOI: 10.32556/floribunda.v4i7.2013.108

Abstract

Anaphalis javanica and A. longifolia, were collected during the expeditionto Mt. Merapi, Singgalang, Tandikat, and Talang (West Sumatra). Beside two of these species, several individuals of Anaphalis that differs in several characters from the two others species were also found. Based on it, morphometric study and biology reproduction analysis were carried out to clarify their taxonomic classification. Fifty three individuals of Anaphalis were collected and twenty four characters had been observed and measured to define species and morphology variation. Data analysis revealed that the alien species were defined as a natural hybrid of A. javanica and A. longifolia. There was no significant difference that number and morphology of pollens among populations as well as those two species studied. Based on the P/O ratio analysis indicated that breeding system of A. javanica and A. longifolia were facultative xenogamy. The same ornamentation (echinate) in both of two species suggested that the natural hybridization between two species was possible.
PENGARUH PENCEMARAN DEBU SEMEN PADA STRUKTUR DAN FUNGSI DAUN BEBERAPA JENIS TANAMAN BERDAUN LEBAR Ahmad Taufiq; Sasmita Yuliza; Alponsin; Zuhri Syam
Bio-Lectura : Jurnal Pendidikan Biologi Vol. 8 No. 1 (2021)
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/bl.v8i1.6354

Abstract

The stomatal features of the leaves of several species of various life forms that grow around the cement factory are investigated with the aim of examining the anatomical modifications of the leaves which increase their tolerance and survival in the presence of cement dust pollution. In addition, the chlorophyll content in the leaves has also been examined. In comparison, the same study has also been carried out for the composition of the same species in unaffected locations. Three different life forms of the plant were investigated over two sites: trees, represented by Polyalthia longifolia, Acacia auriculiformis, Persea americana, and Mangifera indica; shrubs by Syzygium myrtifolium, and Ixora javanica; and herbs by Rhoe and Aglaonema. The average stomata density in the affected area was 173.16 /mm2, while it could reach 244.96 /mm2 at the control site. The same trend was also shown by the chlorophyll content. The Independent T-test revealed a significant difference (p-value = 0.037). Adaptability in terms of having chlorophyll content from all three life forms at different sites was also available in this discussion. Herbs has the greatest difference between sites (0.33 μg/mL), followed by shrubs (0.31 μg/mL) and then trees (0.2 μg/mL). The Two way ANOVA test showed that both life forms and sites significantly influenced the content of chlorophyll (p-value = 0.00). However, there was no interaction between sites and life forms in influencing chlorophyll content (p value=0.652). In conclusion, In all three life forms, either stomatal density or chlorophyll content decreases with pollution.
Phylogenetic Analysis of Baccaurea Spp. in West Sumatra Using MatK Molecular Markers Saswita, Helvi Maudy; Syamsuardi, Syamsuardi; Nurainas, Nurainas; Suwardi, Adi Bejo; Taufiq, Ahmad
Biosaintifika: Journal of Biology & Biology Education Vol 15, No 3 (2023): December 2023
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v15i3.46051

Abstract

Baccaurea is a group of fruit-producing plants found in wild forests. Many of these plant species have not yet explored their potential. The high rate of deforestation in West Sumatra poses a threat of extinction to the genetic resources of the genus Baccaurea before being explored and identified. The research aims to analyze the sequence characters and phylogenetic of Baccaurea found in West Sumatra using the MatK molecular marker. Phylogenetic analysis using the Maximum Likelihood (ML) method in MEGA X application. The results of the analysis of the six species of Baccaurea found that the sequence length ranged from 854-1019bp, the percentage of G+C base composition is 33.4%, the percentage of A+T base composition is 66.6%, the genetic distance range is 0-4% with a conservative character of 484bp and informative characters of 4bp. While the phylogenetic analysis using the ML method grouping the six species of Baccaurea to form a monophyletic clade with a bootstrap value of 100%, all species collected were in the same clade. These results reveal the first time that the MatK sequences from six species Baccaurea native to West Sumatra will be included in NCBI for use by other studies in conducting broader phylogenetic research.
Evaluating Species Distribution Models (SDMs) for Efficient and Accurate Detection of Wild Species Across Landscapes Taufiq, Ahmad; Nurainas
Jurnal Biologi Universitas Andalas Vol 13 No 01 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.13.01.36-42.2025

Abstract

Species distribution models (SDMs) have been used across continents and taxonomic groups to guide field surveys and improve detection efficiency. In several studies, SDM-guided approaches achieved Area Under the Curve values between 0.90 and 0.976, with some reports documenting the discovery of new populations (e.g., 4 of 8 species or 5-16 additional sites) and time savings of up to 70% compared with unsystematic surveys. One study noted that Gaussian Process models operated 70 times faster than an alternative estimation method. Additional work indicates that SDMs narrow survey areas and enhance cost effectiveness, particularly when environmental layers and robust occurrence data support model development. These studies show that, when applied with methods such as Maxent and ensemble approaches, SDMs offer a viable alternative to direct field surveys for locating wild species over large areas. Limitations arise when data quality or model specification is insufficient, suggesting that careful design remains essential for reliable outcomes.
MIKROMORFOLOGI POLEN DAN ANALISIS NUMERIK Plagiostachys Ridl. (ZINGIBERACEAE) DARI SUMATRA DAN IMPLIKASI SISTEMATISNYA Nurhasna; Nurainas; Mildawati Mildawati; Atthoriq Fauzan; Ahmad Taufiq; Syamsuardi
Berita Biologi Vol 25 No 1 (2026): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/berita_biologi.2026.15465

Abstract

Studi mikromorfologi polen dan analisis numerik karakter morfologi telah dilakukan terhadap lima taksa Plagiostachys yang terdistribusi di Sumatra. Observasi mikromorfologi polen dilakukan menggunakan mikroskop cahaya (Light Microscope/LM) dan mikroskop elektron pemindai (Scanning Electron Microscope/SEM). Pengelompokan taksa dilakukan secara numerik menggunakan analisis UPGMA berdasarkan 16 karakter makromorfologi dan mikromorfologi. Butir polen yang diamati tergolong tipe monad, berbentuk prolate-sphaeroidal, tidak memiliki apertur (inaperturate), berukuran sedang (medium), dengan tipe ornamentasi dinding polen micro-rugulate, psilate, dan echinate-reticulate. Ornamentasi berduri (echinate) ditemukan pada sebagian besar spesies Plagiostachys, dan pada tingkat spesies, karakter ini memberikan evidensi tambahan yang signifikan untuk membedakan P. roseiflora dan P. crocydocalyx. Analisis numerik menghasilkan dua kelompok utama, dengan P. crocydocalyx dan P. roseiflora pada kelompok A, dan kelompok B terbagi menjadi 2 subkelompok: subkelompok I terdiri dari seluruh individu P. mucida dan Plagiostachys sp. sedangkan subkelompok II terdiri dari seluruh individu P. sumatrensis. Sebagai kesimpulan, karakter mikromorfologi polen memberikan kontribusi secara sistematis untuk memperkuat klasifikasi genus Plagiostachys.
Potential of Mangrove Species for Protecting Mentawai and Sumatra Coasts from Megathrust Hazards: A Systematic Review Ahmad Taufiq; Alponsin
Jurnal Biologi Universitas Andalas Vol 14 No 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.14.1.1-6.2026

Abstract

Coastal communities of Mentawai and western Sumatra face recurrent tsunami and erosion hazards associated with the Sunda megathrust. This systematic review evaluated mangrove taxa with evidence relevant to coastal protection. A semantic search in Elicit, covering Semantic Scholar and OpenAlex, identified 1,000 records. Screening followed PRISMA 2020: 993 records were excluded at the title and abstract stage, seven reports were sought, four full texts were assessed, and two studies met the eligibility criteria. Data were synthesized narratively because of heterogeneity in location, threat, and outcome metrics. A post-tsunami field survey from Sri Lanka reported that mature Rhizophora, Sonneratia, and Bruguiera stands resisted extreme hydrodynamic forces, with no adult true mangrove trees uprooted. An Indonesian study from Bengkalis Island found the greatest wave reduction factor for Nypa fruticans (0.0081 to 0.0087 m-1 at a 6 second period), followed by red mangrove, whereas Avicennia marina performed least effectively and had high offshore mortality. The evidence indicates complementary functions rather than a single universally superior species. Rhizophora species appear suitable for structurally exposed fringes, while Nypa fruticans may strengthen estuarine and landward zones through wave attenuation, sediment trapping, and rapid recovery. However, only two heterogeneous studies were included, neither conducted in Mentawai. Local hydrodynamic modeling and field trials are required before implementation.
Aneuk Jamee traditional foods in the South Aceh District, Indonesia SYAMSUARDI SYAMSUARDI; NURAINAS NURAINAS; AHMAD TAUFIQ; TISNA HARMAWAN; ADI BEJO SUWARDI
Biodiversitas Journal of Biological Diversity Vol. 23 No. 1 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230146

Abstract

Abstract. Syamsuardi, Nurainas, Taufiq A, Harmawan T, Suwardi AB. 2021. Aneuk Jamee traditional foods in the South Aceh District, Indonesia. Biodiversitas 23: 443-454. The traditional foods of the Aneuk Jamee Tribe have a long history and unique traditions passed down for thousands of years. However, a lack of information about indigenous and traditional foods of the Aneuk Jamee Tribe will lead to a decline in local knowledge of traditional foods, particularly among the younger generation. Therefore, this study aimed to investigate the variety of Aneuk Jamee traditional foods in the South Aceh District of Indonesia. The study was conducted in South Aceh, Indonesia, Labuhan Haji Timur, Kota Bahagia, and Kluet Selatan Sub-districts. The study involved 90 respondents (30 from each sub-district) chosen at random. The interview was conducted using a questionnaire covering the respondents' backgrounds, traditional food names, food composition, mode of preparation, and uses. As a result, 52 Aneuk Jamee's traditional foods were identified from three sub-districts of South Aceh District, including 41 types of traditional cuisine and 11 types of traditional snacks. All respondents recognised Gulai ciik minyak, Gulai taleh, Gulai paku, Gulai cabadak, Gulai kabau, Gulai kambieng, Gulai ikan panjang, Gulai kitang, Kue kakareh, Limpieng sagu, and Limpieng ubi as Aneuk Jamee traditional foods. On the other hand, less than 20% of respondents were familiar with other traditional foods, such as Lamang ubi. The Aneuk Jamee Tribe has an excellent system for passing down traditional knowledge from generation to generation. Fifty-six plant species consisting of 47 genera and 28 families were used as Aneuk Jamee traditional food. The Aneuk Jamee Tribe prepares various foods from various plant species to maintain their health and contribute to household income and conservation efforts.
Identifying the potential geographic distribution for Castanopsis argentea and C. tungurrut (Fagaceae) in the Sumatra Conservation Area Network, Indonesia TRY SURYA HARAPAN; NURAINAS NURAINAS; SYAMSUARDI SYAMSUARDI; AHMAD TAUFIQ
Biodiversitas Journal of Biological Diversity Vol. 23 No. 4 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230402

Abstract

Abstract. Harapan TS, Nurainas, Syamsuardi, Taufiq A. 2022. Identifying the potential geographic distribution for Castanopsis argentea and Castanopsis tungurrut (Family: Fagaceae) in the Sumatra Conservation Area Network, Indonesia. Biodiversitas 23: 1726-1733. Recently, Castanopsis argentea (Blume) A.DC. and Castanopsis tungurrut (Blume) A.DC. have been listed as endangered species by the International Union for the Conservation of Nature (IUCN). For conservation planning, it is important to know the full distribution of species. This study aimed to predict the potential distribution of C. argentea and C. tungurrut using MaxEnt, and understand key factors responsible for the distribution of these species. A total of 53 occurrences and six environmental variables were used to model their distribution. The AUC values of C. argentea and C. tungurrut were 0.86 and 0.91, respectively, and the models suggest the distribution of both species is mainly influenced by elevation, and temperature seasonality for C. tungurrut. The predicted distributions of the species are in the mountains of the western part of Sumatra, and their range includes 12 conservation areas that have highly suitable habitats for both species. After generating the MaxEnt prediction map, we conducted field validation to validate the model predictions. Field surveys in two predicted areas showed that the predicted distribution maps accurately estimated the distribution of C. argentea and C. tungurrut at those localities.
Co-Authors Adi Bejo Suwardi Ahsanul Husna Alponsin Alponsin Andri Saputra Ardinis Arbain Atthoriq Fauzan Erizal Mukhtar Mahdi Mutashim Mansyurdin Mildawati Mildawati Nurainas Nurainas Nurainas Nurhasna Sasmita Yuliza Saswita, Helvi Maudy Syamsuardi Syamsuardi Tesri Maideliza Thoriq Alfath Febriamansyah TISNA HARMAWAN TRY SURYA HARAPAN Try Surya Harapan Zuhri Syam